CN109517508B - Aqueous optical stealth coating material - Google Patents
Aqueous optical stealth coating material Download PDFInfo
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- CN109517508B CN109517508B CN201811286034.6A CN201811286034A CN109517508B CN 109517508 B CN109517508 B CN 109517508B CN 201811286034 A CN201811286034 A CN 201811286034A CN 109517508 B CN109517508 B CN 109517508B
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D175/00—Coating compositions based on polyureas or polyurethanes; Coating compositions based on derivatives of such polymers
- C09D175/04—Polyurethanes
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
- C09D5/30—Camouflage paints
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
- C09D7/60—Additives non-macromolecular
- C09D7/61—Additives non-macromolecular inorganic
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Abstract
The invention provides a water-based optical stealth coating material. The coating material comprises two colors of medium green and dark green, and is prepared by utilizing high-performance ceramic pigment, resin, other pigments and fillers and the like, wherein the high-performance ceramic pigment is prepared by efficiently grinding and sintering rare earth europium compound, chromium oxide and zinc oxide at high temperature. The coating material is simple in preparation process, moderate in price, green and environment-friendly, has high spectral stealth capability in visible light and near infrared wave bands, and can be widely applied to camouflage protection in the fields of military equipment, command places, radar communication and the like.
Description
Technical Field
The invention particularly relates to a water-based optical stealth coating material, and belongs to the technical field of camouflage stealth.
Background
Since the middle of the last 80 th century, western countries including the united states have been involved in successive stealth technical research, and new binders and coloring pigments have been screened by tightening, so that a group of stealth paints with high practicability and suitable for visible light and near infrared bands have been developed. China starts late in the industry, basically adopts conventional pigments as camouflage colors, has low fitting degree with background environment, and is difficult to meet military requirements for resisting broadband, especially hyperspectral detection.
In the 'visible light and near infrared detection preventing fluorocarbon optical camouflage coating and the preparation method thereof' provided by the patent 201410150254.1, the coating only has a stealth function in visible light and near infrared bands, cannot meet the requirement of high spectrum, and has large solvent dosage and no environmental protection. Patents 201610524797.4 and 201510208621.3 disclose novel thermal insulation hollow ceramic microsphere infrared camouflage coating materials and anticorrosive wave-absorbing stealthy coatings respectively, but both are difficult to resist visible light and near infrared investigation.
Disclosure of Invention
The invention aims to solve the problems of overcoming the application defects of the existing oil paint, and aims to provide the water-based optical stealth coating material which is low in VOCs content, green and environment-friendly and has a hyperspectral camouflage effect in the visible light and near infrared wave band range. The second purpose is to provide a preparation method for obtaining the novel high-performance inorganic ceramic coloring pigment modified by the rare earth europium so as to effectively improve the mimicry capability of camouflage color.
The technical scheme adopted by the invention for solving the problems is as follows: the water-based optical stealth coating material is characterized by comprising two colors of medium green and dark green, is prepared from water-based resin, rare earth europium-modified high-performance ceramic pigment and other components, and has high spectral camouflage capacity in a wide waveband range of 380-2500 nm.
Preferably, the aqueous optical stealth coating is obtained by curing A, B components, and the component A comprises 30-40 parts of aqueous acrylic resin, 25-42 parts of pigment and filler, 0.5-5 parts of auxiliary agent, 10-35 parts of deionized water and 10-20 parts of environment-friendly solvent by mass; the component B comprises 50-70 parts of polyisocyanate and prepolymer thereof and 30-50 parts of environment-friendly solvent.
More preferably, the aqueous acrylic resin is matte and is obtained by reacting two or more of methacrylic acid, ethacrylic acid and derivatives thereof, and styrene.
Further preferably, the polyisocyanate is one or a mixture of TDI (toluene diisocyanate), HDI (hexamethylene diisocyanate) and MDI (diphenylmethane diisocyanate) according to a certain proportion.
Preferably, the medium green pigment is prepared by blending two or more of rare earth europium-modified high-performance ceramic, light-fast yellow, medium chrome yellow, ITO (aluminum-doped indium oxide), iron black and titanium dioxide; the dark green pigment is prepared by blending two or more of rare earth europium modified high-performance ceramic, ITO (aluminum-doped indium oxide), medium chrome yellow, copper chrome black, cobalt black, sun-proof yellow and titanium dioxide.
Preferably, the rare earth europium-modified high-performance ceramic is prepared by high-speed grinding, dispersing and high-temperature sintering of chromium oxide, europium oxide and zinc oxide.
Preferably, the molar ratio of chromium oxide, europium oxide and zinc oxide in the rare earth europium-modified high-performance ceramic is (1-3): 1: 1.
the preparation method of the rare earth europium modified high-performance inorganic ceramic coloring pigment in the technical scheme relates to the following steps: (1) putting the chromium oxide, the europium oxide and the zinc oxide which are weighed according to the molar ratio into a ball mill, ball-milling for 1-3 hours at the rotating speed of 4000-5000 r/min, and discharging.
(2) Sintering the mixture obtained in the step (1) in a high-temperature furnace, setting an initial temperature of 600-700 ℃, a heating rate of 10-15 ℃/min, and preserving heat for 30-50 min after the temperature is raised to 600-700 ℃; setting the temperature to be 1000-1300 ℃, heating at the speed of 10-15 ℃/min, keeping the temperature for 2-3 hours after the temperature rises to 1000-1300 ℃, and finally naturally cooling and discharging.
(3) Grinding the sintered block materials to 500-800 meshes of fineness, washing for 1-3 times by using 10-20 wt% of dilute sulfuric acid solution, washing for 1-3 times by using deionized water, and drying for later use.
Compared with the prior art, the beneficial results of the invention are as follows:
1. the optical stealth coating material is a water-based product, comprises two colors of medium green and dark green, has high spectral camouflage capacity in a wide waveband range of 380-2500 nm, is green and safe in raw materials, and highly conforms to the national environmental protection policy.
2. The medium green and dark green pigments are prepared by mixing rare earth europium modified high-performance inorganic ceramic with other pigments, the pigments are arranged by utilizing special outer layer electrons of europium, electrons on a 4f orbit and a secondary outer layer d orbit are easily lost, and energy released by electron transition after excitation is just corresponding to the specific 680-730 nm spectral range of green vegetation, so that the pigments have good mimicry and can effectively resist hyperspectral detection.
3. The matte waterborne bi-component acrylic polyurethane is used as an adhesive, and compared with the traditional product, the matte waterborne bi-component acrylic polyurethane has the advantages that the glossiness of a coating film is lower, the light scattering effect is obvious, and the improvement of the stealth effect in the natural environment is facilitated.
Based on the characteristics, the coating material provided by the invention has the capability of resisting high spectrum detection in visible light and near infrared bands, and can be widely applied to camouflage protection in the fields of military equipment, command places, radar communication and the like.
Detailed Description
The invention is further illustrated by the following examples, which do not limit the scope of the invention.
The first embodiment is as follows: preparation of water-based medium-green optical stealth coating
(1) High-performance rare earth europium modified ceramic pigment
Adding 1mol of chromium oxide, 1mol of europium oxide and 1mol of zinc oxide into a ball mill, ball-milling for 3 hours at the rotating speed of 4000r/min, then putting the ball mill into a tube furnace for sintering, setting the initial temperature to be 600 ℃, raising the temperature at the speed of 10 ℃/min, and preserving the heat for 50 minutes after the temperature is raised to 600 ℃; setting the temperature at 1300 deg.C, heating at 10 deg.C/min, and maintaining for 2hr after the temperature rises to 1300 deg.C to obtain green block product. And naturally cooling the product, grinding the product to 500-mesh fineness, washing the product for 3 times by using 10 wt% dilute sulfuric acid, washing the product for 2 times by using deionized water, and drying the product for later use.
(2) Aqueous medium-green optical stealth coating component A
a. Adding 2.5 parts of dispersing agent, 0.3 part of defoaming agent, 0.7 part of anti-settling agent, 0.5 part of flatting agent, 10 parts of environment-friendly solvent and 35 parts of deionized water into a high-speed homogeneous dispersion machine, and stirring at the rotating speed of 1200r/min for 25min to uniformly disperse the components;
b. adding 22 parts of rare earth europium modified ceramic pigment obtained in the step (1), 10.2 parts of medium chrome yellow, 2.8 parts of ITO (aluminum-doped indium oxide) and 7 parts of titanium dioxide into the dispersion liquid prepared in the step a in sequence, and dispersing for 30min at the rotating speed of 2000 r/min;
c. and c, transferring the uniformly dispersed mixture obtained in the step b into a ball mill, grinding the mixture until the fineness is not more than 30 mu m, filtering the mixture to obtain medium green color paste, adding 30 parts of matte waterborne acrylic resin into the color paste, and stirring the mixture for 20min at the rotating speed of 700r/min to obtain the component A.
(3) Aqueous medium-green optical stealth coating B component
And uniformly stirring 35 parts of HDI, 15 parts of MDI and 50 parts of environment-friendly solvent at the rotating speed of 700r/min to obtain the HDI-MDI-solvent.
When in use, A, B components are mixed according to the proportion of 1.05: mixing at a mass ratio of 1, and stirring uniformly at a rotating speed of 700r/min to construct.
Example two: preparation of water-based dark green optical stealth coating
(1) High-performance rare earth europium modified ceramic pigment
Adding 3mol of chromium oxide, 1mol of europium oxide and 1mol of zinc oxide into a ball mill, ball-milling at the rotating speed of 5000r/min for 1hr, then placing the ball mill into a tube furnace for sintering, setting the initial temperature to 700 ℃, raising the temperature at the speed of 15 ℃/min, and preserving the heat for 30min after the temperature is raised to 700 ℃; setting the temperature at 1000 deg.C, heating at 15 deg.C/min, and maintaining for 3hr when the temperature rises to 1000 deg.C to obtain green block product. And naturally cooling the product, grinding the product to 800 meshes of fineness, washing the product for 2 times by using 20 wt% dilute sulfuric acid, washing the product for 3 times by using deionized water, and drying the product for later use.
(2) Aqueous dark green optical stealth coating component A
a. Adding 2.0 parts of dispersing agent, 0.5 part of defoaming agent, 1 part of anti-settling agent, 0.5 part of flatting agent, 20 parts of environment-friendly solvent and 10 parts of deionized water into a high-speed homogenizing dispersion machine, and stirring at the rotating speed of 1000r/min for 30min to uniformly disperse the materials;
b. adding 18 parts of rare earth europium modified ceramic pigment obtained in the step (1), 1 part of medium chrome yellow, 6.8 parts of copper chrome black and 6.2 parts of titanium dioxide into the dispersion liquid prepared in the step a in sequence, and dispersing for 30min at the rotating speed of 2000 r/min;
c. and c, transferring the uniformly dispersed mixture obtained in the step b into a ball mill, grinding the mixture until the fineness is not more than 30 mu m, filtering the mixture to obtain dark green color paste, adding 40 parts of matte waterborne acrylic resin into the color paste, and stirring the mixture for 15min at the rotating speed of 800r/min to obtain the component A.
(3) Aqueous dark green optical stealth coating B component
And uniformly stirring 36 parts of HDI, 16 parts of TDI and 48 parts of environment-friendly solvent at the rotating speed of 700r/min to obtain the HDI/TDI/HDI/TDI/HDI.
When in use, A, B components are mixed according to the proportion of 1.05: mixing at a mass ratio of 1, and stirring uniformly at a rotating speed of 700r/min to construct.
Claims (2)
1. The water-based optical stealth coating material is characterized by comprising a medium green color and a dark green color, wherein the coating is prepared from water-based resin, rare earth europium-modified high-performance ceramic pigment and other components, and has a high-spectrum camouflage effect in 380-2500 nm visible light and near infrared bands; the high-performance ceramic pigment is prepared by efficiently grinding europium oxide, chromium oxide and zinc oxide and then sintering in a high-temperature furnace; the high-performance ceramic pigment comprises chromium oxide, europium oxide and zinc oxide in a molar ratio of (1-3): 1: 1; the medium green color is prepared by blending two or more of high-performance ceramic pigment, sun-proof yellow, medium chrome yellow, aluminum-doped indium oxide ITO, iron black and titanium dioxide; the dark green color is prepared by blending two or more of high-performance ceramic pigment, aluminum-doped indium oxide ITO, medium chrome yellow, copper chrome black, cobalt black, sun-proof yellow and titanium dioxide, wherein the medium green and dark green coating material at least comprises the high-performance ceramic pigment.
2. The aqueous optical stealth coating material of claim 1, comprising but not limited to camouflage protection for military equipment, command space, radar communication.
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| CN201811286034.6A CN109517508B (en) | 2018-10-31 | 2018-10-31 | Aqueous optical stealth coating material |
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| CN201811286034.6A CN109517508B (en) | 2018-10-31 | 2018-10-31 | Aqueous optical stealth coating material |
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| CN109517508B true CN109517508B (en) | 2021-01-26 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109836997A (en) * | 2017-09-26 | 2019-06-04 | 洛阳尖端技术研究院 | A kind of infrared stealth coating and preparation method thereof |
| CN112680043A (en) * | 2020-12-23 | 2021-04-20 | 上海大学 | Water-based spectrum bionic camouflage coating, and preparation method and application thereof |
| CN115651463A (en) * | 2022-11-03 | 2023-01-31 | 南京南大波平电子信息有限公司 | Water-based green hyperspectral camouflage coating and preparation method thereof |
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| WO2001005907A1 (en) * | 1999-07-19 | 2001-01-25 | Hitachi Maxell, Ltd. | Fluorescent composition, ink composition, and printed matter |
| CN103390476A (en) * | 2011-07-05 | 2013-11-13 | 黄坚 | Non-metal invisible material |
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| JP4314811B2 (en) * | 2002-11-19 | 2009-08-19 | 住友金属鉱山株式会社 | Anti-counterfeit ink and anti-counterfeit printed matter |
| CN1680512A (en) * | 2004-04-07 | 2005-10-12 | 台龙电子股份有限公司 | Fluorescent powdery prescription with electronic beam excitation with low-operating voltage and preparation thereof |
| CN101065454B (en) * | 2004-11-25 | 2010-12-08 | 关西涂料株式会社 | Composite powder coating material, process for production thereof and method for the color matching of powder coating material technical field |
| CN101230218A (en) * | 2008-01-03 | 2008-07-30 | 谢俊民 | Invisible pigment coated on material surface |
| CN103614058B (en) * | 2013-11-13 | 2016-04-06 | 东华大学 | A kind of infrared stealth coating and its preparation method and application |
| CN106147475A (en) * | 2015-04-09 | 2016-11-23 | 泉州市合创涂料科技有限公司 | A kind of water paint with camouflage color decorative effect and preparation method thereof |
| CN108395835A (en) * | 2018-02-07 | 2018-08-14 | 湖南航天三丰科工有限公司 | A kind of multiple spectra broadband anticorrosion camouflage coating material |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2001005907A1 (en) * | 1999-07-19 | 2001-01-25 | Hitachi Maxell, Ltd. | Fluorescent composition, ink composition, and printed matter |
| CN103390476A (en) * | 2011-07-05 | 2013-11-13 | 黄坚 | Non-metal invisible material |
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